EP 0806759 B1 20031203 - Canceler of speech and noise, and speech recognition apparatus
Title (en)
Canceler of speech and noise, and speech recognition apparatus
Title (de)
Vorrichtung zur Unterdrückung von Sprache und Rauschen, sowie zur Spracherkennung
Title (fr)
Dispositif de suppression de la parole et du bruit, et dispositif de reconnaissance de la parole
Publication
Application
Priority
JP 5863396 A 19960315
Abstract (en)
[origin: EP0806759A2] A single-input spectral subtraction section 13 removes ambient noise around the caller from received signals. A characteristic correction section 14 estimates transmission characteristics from received and transmitted signals and corrects the transmitted signals to coincide with the received signals. And finally, a dual-input subtraction section 15 removes an automated voice by subtracting the output of the characteristic correction section 14 from the output of the single-input spectral subtraction section 13. <IMAGE>
IPC 1-7
IPC 8 full level
G10L 15/00 (2013.01); G10L 15/20 (2006.01); G10L 21/0208 (2013.01); H04B 3/23 (2006.01); H04M 1/00 (2006.01)
CPC (source: EP US)
G10L 21/0208 (2013.01 - EP US); H04B 3/23 (2013.01 - EP US); G10L 15/20 (2013.01 - EP US); G10L 2021/02168 (2013.01 - EP US)
Designated contracting state (EPC)
BE DE FR GB
DOCDB simple family (publication)
EP 0806759 A2 19971112; EP 0806759 A3 19980930; EP 0806759 B1 20031203; DE 69726490 D1 20040115; JP 2921472 B2 19990719; JP H09252268 A 19970922; US 5937379 A 19990810
DOCDB simple family (application)
EP 97104423 A 19970314; DE 69726490 T 19970314; JP 5863396 A 19960315; US 81903697 A 19970317